Recent questions tagged R

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r - Reshape multiple categorical variables to binary response variables

I am trying to convert the following format: mydata <- data.frame(movie = c("Titanic", "Departed"), actor1 = c(" ... is a clean way to do this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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881 views

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r - geom_tile and facet_grid/facet_wrap for same height of tiles

Using ggplot, I would like represent a graph tile with panel, but with same height tile for each panel. I have ... , and sorry for my English ! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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585 views

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r - Match legend text color in geom_text to symbol

I am trying to color match the text of the legend to the color of text produced by a factored variable ... find anything specific to this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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833 views

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r - How can I add annotations below the x axis in ggplot2?

I have the following graph: library(ggplot2) library(scales) library(magrittr) df1 <- structure( list( x = structure ... the text where I want. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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771 views

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r - How to combine ggplot and dplyr into a function?

Consider this simple example library(dplyr) library(ggplot2) dataframe <- data_frame(id = c(1,2,3,4), ... functions using ggplot and dplyr? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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r - Change geom_text's default "a" legend to label string itself

Similarly to this question, I want to change the default "a" in the legend, but rather than removing it ... geom_text(aes(label = abbrev)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Shiny: Dynamic Number of Output Elements/Plots

I want to make a reactive display, that displays a different number of plots depending on which value of the input selector ... ='mpg' ) }) }) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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604 views

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r - ggplot2: Drop unused factors in a faceted bar plot but not have differing bar widths between facets

df <- structure(list(ID = structure(c(1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 3L, 3L, 3L ... out. Koshke has posted some examples of this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - heatmap-like plot, but for categorical variables

I have three factors (set1, set2, and set3) for each of about 50 individuals. The values for set1, set2, ... 'black'). Any suggestions? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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505 views

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r - Remove all duplicates except last instance

So I have a dataset in R with the following layout as an example: ID Date Tally 1 2/1/2011 1 2 2/1/2011 ... it to do the opposite? Any help? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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555 views

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r - Transforming a time-series into a data frame and back

The output of a time-series looks like a data frame: ts(rnorm(12*5, 17, 8), start=c(1981,1), frequency = ... s the most elegant way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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582 views

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r - Force mapply to return a list?

Suppose I have a function that creates data frames. I'd like to run that function with different input values, ... What should I do differently? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

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r - What does this mean: unable to find an inherited method for function ‘A’ for signature ‘"B"’

I am new to R and keep getting errors with the following message: unable to find an inherited method for ... slightly different meanings in R. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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423 views

1 answer

r - := (pass by reference) operator in the data.table package modifies another data table object simultaneously

While testing my code, I found out the following: If I assign a data.table DT1 to DT and change DT afterwards, DT1 ... .equal(DT1, DT) [1] TRUE See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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561 views

1 answer

r - Rstudio is duplicating commands in the command line

Having a weird problem in R that seems to have come out of nowhere... output in the RStudio terminal is ... considerably!). Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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618 views

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r - How can I rbind vectors matching their column names?

rbind does not check for column names when binding together vectors: l = list(row1 = c(10, 20), row2 = c(20, 10)) ... [1,] 10 20 [2,] 10 20 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

1 answer

r - How to italicize part (one or two words) of an axis title

Is there any way to change the style of part of an axis title while keep the rest part unchanged? In my ... .y=element_text(face="italic")) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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r - Calculate the mean of one column from several CSV files

I have over 300 CSV files in a folder (named 001.csv, 002.csv and so on). Each contains a data frame with ... tweaking, I have run out of ideas. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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572 views

1 answer

r - Accurately converting from character->POSIXct->character with sub millisecond datetimes

I have a character datetime column in a file. I load the file (into a data.table) and do things that require ... attached): [1] tools_2.15.2 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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595 views

1 answer

r - Make sequential numeric column names prefixed with a letter

I want to add a label to my dataset. However, the problems is that there are so many columns in my data ... better way to generate these names? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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602 views

1 answer

r - How to run lm models using all possible combinations of several variables and a factor

this is not my subject so I am sorry if my question is badly asked or if the data is incomplete. I am ... how to post properly questions. Lina See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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466 views

1 answer

r - How to generalize outer to n dimensions?

The standard R expression outer(X, Y, f) evaluates to a matrix whose (i, j)-th entry has the value f( ... LETTERS[10:20], respectively. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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419 views

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r - propagating data within a vector

I'm learning R and I'm curious... I need a function that does this: > fillInTheBlanks(c(1, NA, NA, 2, 3, NA ... (v)] <- value } return(result) } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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766 views

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r - shiny leaflet ploygon click event

I have a map called business which is downloaded from natural earth website. What I am doing here is I created a basic ... ), selected="") )))) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

548 views

1 answer

r - paste two data.table columns

dt <- data.table(L=1:5,A=letters[7:11],B=letters[12:16]) L A B 1: 1 g l 2: 2 h m 3: 3 i n 4: 4 j o 5: 5 k ... : 3 i n in 4: 4 j o jo 5: 5 k p kp See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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463 views

1 answer

r - Change path.expand location (Win 7)

Currently: path.expand("~") Gives: "C:\Users\trinker\Documents" I want it to yield: "C:\Users\trinker" ... \Users\trinker\Documents it is now. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

647 views

1 answer

r - Plot data over background image with ggplot

I'm trying to plot some data over a background image. The problem is that both layers end up using the ... or something I'm overlooking. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

1 answer

r - In ggplot2, coord_flip and free scales don't work together

Here is some example data for a hypothetical meta-analysis on the effectiveness of sports-promotion interventions for ... data for that facet? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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